Methods\/Steps
1 Find \"Phone Manager\" on your phone and tap into it.
2 Click the \"Phone Manager\" indicated by the arrow.
3 Slide the phone screen in the direction indicated by the arrow.
4 Click Power Saving Settings.
5 Click where the arrow points to open.
This opens the reverse charging function of the phone, placing the wireless charging device on the back of the phone, you can charge the phone,
Reverse charging is to use your mobile phone to charge other devices that support wireless charging, of course, the premise is that your mobile phone supports wireless charging and reverse charging. First turn on the reverse charging switch on your phone and then put the other phone back against the back of your phone to charge it.